Have a good 20-minute workout in the morning.Then you can be lazy for the rest of the day,and you won't feel guilty!
30 minute naps are most effective because it only uses the 2 light sleep stages , therefore you don't wake up as tired and you are more productive.
Memorizing songs is extremely healthy for your brain and will improve your mental capacity.
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Hack Your Life
RandomThis book is all about tips, tricks and hacks on : 1.How to make your life easier 2.How to get what you want 3.Psychological tricks to understand people better 4.How to win at everything 5.And lastly how to be the best.